{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "3a42394f",
   "metadata": {},
   "source": [
    "* 时间： 2022-10-25/week10\n",
    "* 记录人：李奥琪\n",
    "---------\n"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "51281c42",
   "metadata": {},
   "source": [
    "# 上周回顾\n",
    "\n",
    "> 1. while循环：while True-->无限循环\n",
    ">> A. 指定次数，while True 可以实现for 循环的指定次数，增加一个count计数器即可。\n",
    ">> B. while True一般与用户输入一起使用，让用户可以重复输入，知道某些条件成立结束输入（购物车）\n",
    "> 2. 购物车实践（平时作业）\n"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "a6f9bb1a",
   "metadata": {},
   "source": [
    "# 本周内容\n",
    "> 1.元组\n",
    "> 2.集合\n",
    "> 3.字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "7e5c0293",
   "metadata": {},
   "source": [
    "# 元组(tuple)\n",
    "> 1. 元组的基本内容（形态、定义）\n",
    "> 2. 元组的一般方法\n",
    ">> 1. 有序性(indexing,sliceing)\n",
    ">> 2. <font color=\"red\">**不可变性**</font>\n",
    "> 3. 元组的一般方法"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "cc4ac866",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1800001, 1800002, 1800003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网三_学号 =(1800001,1800002,1800003)\n",
    "print(网三_学号,type(网三_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "96b7a3c6",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1800001, 1800002, 1800003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网二_学号 =(1800001,1800002,1800003)\n",
    "print(网三_学号,type(网二_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "b5ec0f3b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1800001"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "f49a3f04",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(1800002, 1800003)"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[1:]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "35f111d8",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=25, tm_hour=15, tm_min=7, tm_sec=6, tm_wday=1, tm_yday=298, tm_isdst=0)"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 元组的实际案例\n",
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "id": "f951e188",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on struct_time object:\n",
      "\n",
      "class struct_time(builtins.tuple)\n",
      " |  struct_time(iterable=(), /)\n",
      " |  \n",
      " |  The time value as returned by gmtime(), localtime(), and strptime(), and\n",
      " |  accepted by asctime(), mktime() and strftime().  May be considered as a\n",
      " |  sequence of 9 integers.\n",
      " |  \n",
      " |  Note that several fields' values are not the same as those defined by\n",
      " |  the C language standard for struct tm.  For example, the value of the\n",
      " |  field tm_year is the actual year, not year - 1900.  See individual\n",
      " |  fields' descriptions for details.\n",
      " |  \n",
      " |  Method resolution order:\n",
      " |      struct_time\n",
      " |      builtins.tuple\n",
      " |      builtins.object\n",
      " |  \n",
      " |  Methods defined here:\n",
      " |  \n",
      " |  __reduce__(...)\n",
      " |      Helper for pickle.\n",
      " |  \n",
      " |  __repr__(self, /)\n",
      " |      Return repr(self).\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Static methods defined here:\n",
      " |  \n",
      " |  __new__(*args, **kwargs) from builtins.type\n",
      " |      Create and return a new object.  See help(type) for accurate signature.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data descriptors defined here:\n",
      " |  \n",
      " |  tm_gmtoff\n",
      " |      offset from UTC in seconds\n",
      " |  \n",
      " |  tm_hour\n",
      " |      hours, range [0, 23]\n",
      " |  \n",
      " |  tm_isdst\n",
      " |      1 if summer time is in effect, 0 if not, and -1 if unknown\n",
      " |  \n",
      " |  tm_mday\n",
      " |      day of month, range [1, 31]\n",
      " |  \n",
      " |  tm_min\n",
      " |      minutes, range [0, 59]\n",
      " |  \n",
      " |  tm_mon\n",
      " |      month of year, range [1, 12]\n",
      " |  \n",
      " |  tm_sec\n",
      " |      seconds, range [0, 61])\n",
      " |  \n",
      " |  tm_wday\n",
      " |      day of week, range [0, 6], Monday is 0\n",
      " |  \n",
      " |  tm_yday\n",
      " |      day of year, range [1, 366]\n",
      " |  \n",
      " |  tm_year\n",
      " |      year, for example, 1993\n",
      " |  \n",
      " |  tm_zone\n",
      " |      abbreviation of timezone name\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data and other attributes defined here:\n",
      " |  \n",
      " |  n_fields = 11\n",
      " |  \n",
      " |  n_sequence_fields = 9\n",
      " |  \n",
      " |  n_unnamed_fields = 0\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __add__(self, value, /)\n",
      " |      Return self+value.\n",
      " |  \n",
      " |  __contains__(self, key, /)\n",
      " |      Return key in self.\n",
      " |  \n",
      " |  __eq__(self, value, /)\n",
      " |      Return self==value.\n",
      " |  \n",
      " |  __ge__(self, value, /)\n",
      " |      Return self>=value.\n",
      " |  \n",
      " |  __getattribute__(self, name, /)\n",
      " |      Return getattr(self, name).\n",
      " |  \n",
      " |  __getitem__(self, key, /)\n",
      " |      Return self[key].\n",
      " |  \n",
      " |  __getnewargs__(self, /)\n",
      " |  \n",
      " |  __gt__(self, value, /)\n",
      " |      Return self>value.\n",
      " |  \n",
      " |  __hash__(self, /)\n",
      " |      Return hash(self).\n",
      " |  \n",
      " |  __iter__(self, /)\n",
      " |      Implement iter(self).\n",
      " |  \n",
      " |  __le__(self, value, /)\n",
      " |      Return self<=value.\n",
      " |  \n",
      " |  __len__(self, /)\n",
      " |      Return len(self).\n",
      " |  \n",
      " |  __lt__(self, value, /)\n",
      " |      Return self<value.\n",
      " |  \n",
      " |  __mul__(self, value, /)\n",
      " |      Return self*value.\n",
      " |  \n",
      " |  __ne__(self, value, /)\n",
      " |      Return self!=value.\n",
      " |  \n",
      " |  __rmul__(self, value, /)\n",
      " |      Return value*self.\n",
      " |  \n",
      " |  count(self, value, /)\n",
      " |      Return number of occurrences of value.\n",
      " |  \n",
      " |  index(self, value, start=0, stop=9223372036854775807, /)\n",
      " |      Return first index of value.\n",
      " |      \n",
      " |      Raises ValueError if the value is not present.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Class methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __class_getitem__(...) from builtins.type\n",
      " |      See PEP 585\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(time.localtime())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "f8498e48",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [3, 4, 5, 6]) <class 'tuple'> 2610837816512\n",
      "[1, 2, 3, 4] 2610837913856\n"
     ]
    }
   ],
   "source": [
    "tuple_test = ([1,2,3,4],[3,4,5,6])\n",
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "7c178cca",
   "metadata": {},
   "outputs": [],
   "source": [
    "tuple_test[0].append(100)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "f18f4a9f",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4, 100], [3, 4, 5, 6]) <class 'tuple'>\n",
      "[1, 2, 3, 4, 100] 2610837913856\n"
     ]
    }
   ],
   "source": [
    "print(tuple_test,type(tuple_test)),id(tuple_test)\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "fa14b023",
   "metadata": {},
   "source": [
    "## 集合(set)\n",
    "> 1. 集合的基本概念\n",
    ">> 1. 性质：没有重复项\n",
    ">> 2. 性质：无序性\n",
    ">> 2. 集合的一般方法\n",
    ">> 1. 集合的运算：&，\n",
    ">> 2. 集合的一般运算intersection"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "5a403a41",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n",
      "['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n"
     ]
    }
   ],
   "source": [
    "basket_lists = [\"apple\",\"orange\",\"apple\",\"pear\",\"orange\",\"banana\"]\n",
    "basket_sets = [\"apple\",\"orange\",\"apple\",\"pear\",\"orange\",\"banana\"]\n",
    "print(basket_lists)\n",
    "print(basket_sets)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "eab5ce26",
   "metadata": {},
   "outputs": [],
   "source": [
    "舞蹈社 = {1801,1802,1803,1804,1806}\n",
    "电竞社 = {1806,1807,1801,1802,1811}"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4f022a02",
   "metadata": {},
   "source": [
    "* 集合与运算，交集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "c1d86851",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1806}"
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 & 电竞社"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2dc97d74",
   "metadata": {},
   "source": [
    "* 集合的运算，并集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "853a4270",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1804, 1806, 1807, 1811}"
      ]
     },
     "execution_count": 33,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 | 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "08ad31a0",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "7"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(舞蹈社 | 电竞社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "a7143b71",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1804, 1806, 1807, 1811}"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.union(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4d7c2ce1",
   "metadata": {},
   "source": [
    "# 3.字典(dict)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "1f923e5a",
   "metadata": {},
   "source": [
    "> 1. 字典的基本概念：\n",
    ">> 1. 字典性质：\n",
    ">>> 1. 无序性\n",
    ">>> 2. keys 是不变的\n",
    ">>> 3. keys 是唯一的\n",
    ">> 2. 字典的形态\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "id": "6576f45c",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新二班 = {\n",
    "    1800001:\"李易峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Mary\",\n",
    "    1800004:\"周杰伦\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "id": "d42af9d5",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李易峰', 1800002: 'Jack', 1800003: 'Mary', 1800004: '周杰伦'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "print(网新二班,type(网新二班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "b5f6bce7",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 因为学号是唯一的，可以作为字典的key"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "id": "18d9b341",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新三班 = {\n",
    "    1800001:\"李易峰\",\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"Jack\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "f995a71d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'周杰伦'"
      ]
     },
     "execution_count": 49,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 字典的取值： 通过keys 进行字典的取值， unlike 列表、元组和字符串通过index取值\n",
    "网新三班[1800004]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "id": "c9d11ac2",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新三班 =  {\n",
    "    1800001:[\"李易峰\",\"广州\",\"男\",19,\"聊天记录\",\"朋友圈\"],\n",
    "    1800002:\"Jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"Jack\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 53,
   "id": "d6c4b680",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['李易峰', '广州', '男', 19, '聊天记录', '朋友圈']"
      ]
     },
     "execution_count": 53,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新三班[1800001]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "20dd2aae",
   "metadata": {},
   "source": [
    "# 3.2 字典的一般方法\n",
    "\n",
    "* 1、按照字典的形式直接创建(key:value)\n",
    "* 2、使用dict()方法创建字典"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 54,
   "id": "80decdbb",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用dict()方法新建字典\n",
    "网新四班 = dict(\n",
    "    stu1800001 =\"李易峰\",\n",
    "    stu1800002 =\"Jack\",\n",
    "    stu1800003 =\"Marry\",\n",
    "    stu1800004 =\"周杰伦\",\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 55,
   "id": "0a36e986",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李易峰',\n",
       " 'stu1800002': 'Jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 55,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新四班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 59,
   "id": "81d772b1",
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "cannot assign to literal (Temp/ipykernel_3176/2060639386.py, line 4)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  File \u001b[1;32m\"C:\\Users\\11513\\AppData\\Local\\Temp/ipykernel_3176/2060639386.py\"\u001b[1;36m, line \u001b[1;32m4\u001b[0m\n\u001b[1;33m    网新一班 = [\"stu1800001\"] =\"李易峰\"\u001b[0m\n\u001b[1;37m            ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m cannot assign to literal\n"
     ]
    }
   ],
   "source": [
    "# 使用字典增加的方式创建字典 ： dict[key] = value\n",
    "\n",
    "网新一班 = {}\n",
    "网新一班 = [\"stu1800001\"] =\"李易峰\"\n",
    "网新一班 = [\"stu1800002\"] =\"Jack\"\n",
    "网新一班 = [\"stu1800003\"] =\"Marry\"\n",
    "网新一班 = [\"stu1800004\"] =\"周杰伦\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b8986c5f",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "84278125",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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    "name": "ipython",
    "version": 3
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   "file_extension": ".py",
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